单项选择题

A．Because it was their hometown.
B．Because they wanted to help the AIDS patients.
C．Because they were doing their summer social topics.
D．They were learning medicine and doing research on HIV.
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问答题
Some learn by taking notes and making charts and others learn by ________.
单项选择题
A．Children don’’t get enough education in safety.B．Children are keen on dangerous games.C．The playgrounds are in poor condition.D．The playgrounds are overcrowded.
A．Children don’’t get enough education in safety.
B．Children are keen on dangerous games.
C．The playgrounds are in poor condition.
D．The playgrounds are overcrowded.
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